Date: Mon, 15 Sep 1997 12:47:13 -0600 (MDT) From: Doug Russell <drussell@saturn-tech.com> To: William Maddox <maddox@p-1.Eng.Sun.COM> Cc: Michael Beckmann <beckmann@nacamar.net>, hardware@FreeBSD.ORG Subject: Re: Parity trouble with Asus mainboard Message-ID: <Pine.BSF.3.95.970915124530.1820C-100000@hobbes.saturn-tech.com> In-Reply-To: <Pine.GSO.3.96.970915104918.6541A-100000@p-1>
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> Are you sure these are true parity SIMMs? Some cheap SIMMs use "logic > parity", which just fakes a parity bit for older MBs that require it. > These will not work with ECC, and should be avoided in any case. > Also, you describe these SIMMs as 2 x 32, 8 x 32 and so forth. In > standard nomenclature, the "32" is the width of the SIMM, i.e., 32 bits. > Parity SIMMs are 2 x 36, etc. > > Admittedly, this doesn't explain why the Gigabyte board worked, unless > somehow the ECC was disabled behind your back. It is quite possible that the Gigabyte automatically disables ECC if you don't actually have parity memory installed as an "idiot-proof" type feature. I honestly don't know for sure, though. Later...... <Doug>
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